Poinsettia plant named ‘PER1904’

ABSTRACT

A new and distinct cultivar of Poinsettia plant named ‘PER1904’, characterized by its uniform, upright and mounded plant habit; freely branching habit; recurved dark green-colored leaves; mid-season flowering response; inflorescences with pink-colored flower bracts that are recurved; and excellent post-production longevity.

CROSS-REFERENCE TO RELATED APPLICATIONS:

Title: Poinsettia Plant Named ‘PER2004’.

Applicant: Ruth Kobayashi; filed concurrently (U.S. Plant patent application Ser. No. 11/483,221).

Botanical designation: Euphorbia pulcherrima

Cultivar denomination: PER1904’.

CROSS-REFERENCE TO RELATED APPLICATIONS

Title: Poinsettia Plant Named ‘PER2004’. Applicant: Ruth Kobayashi; filed concurrently (U.S. Plant patent application Ser. No. 11/483,221).

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Poinsettia plant, botanically known as Euphorbia pulcherrima Willd., and hereinafter referred to by the name ‘PER1904’.

The new Poinsettia a product of a planned breeding program conducted by the Inventor in Encinitas, Calif. The objective of the breeding program is to create new Poinsettia cultivars having flower bracts with desirable colors, uniform plant habit and excellent post-production longevity.

The new Poinsettia is a naturally-occurring branch mutation of the Euphorbia pulcherrima Willd. cultivar PER1072, disclosed in U.S. Plant Pat. No. 15,883. The cultivar PER1904 was discovered and selected by the Inventor from within a population of plants of ‘PER1072’ in a controlled environment in Encinitas, Calif. in December, 2003.

Asexual reproduction of the new Poinsettia by terminal vegetative cuttings in a controlled environment in Encinitas, Calif. has shown that the unique features of this new Poinsettia are stable and reproduced true to type in successive generations of asexual reproduction.

SUMMARY OF THE INVENTION

The cultivar PER1904 has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘PER1904’. These characteristics in combination distinguish ‘PER1904’ as a new and distinct cultivar of Poinsettia:

-   -   1. Uniform, upright and mounded plant habit.     -   2. Freely branching habit.     -   3. Recurved dark green-colored leaves.     -   4. Mid-season flowering response; under natural season         conditions, plants flower in about 7.5 weeks in Encinitas,         Calif.     -   5. Inflorescences with pink-colored flower bracts that are         recurved.     -   6. Excellent post-production longevity.

In side-by-side comparisons conducted in Encinitas, Calif., plants of the new Poinsettia differed from plants of the parent, the cultivar PER1072, primarily in flower bract color as plants of the cultivar PER1072 had dark red-colored flower bracts.

In side-by-side comparisons conducted in Encinitas, Calif., plants of the new Poinsettia differed from plants the cultivar PER2004, primarily in flower bract color as plants of the cultivar PER2004 had pink and creamy white bi-colored flower bracts.

Plants of the new Poinsettia can be compared to plants of the Poinsettia cultivar Eckaddis, disclosed in U.S. Plant Pat. No. 12,782. In side-by-side comparisons conducted in Encinitas, Calif., plants of the new Poinsettia differed from plants of the cultivar Eckaddis in the following characteristics:

-   -   1. Plants of the new Poinsettia were more compact than plants of         the cultivar Eckaddis.     -   2. Plants of the new Poinsettia flowered about two weeks earlier         than plants of the cultivar Eckaddis grown under natural season         conditions.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new Poinsettia. These photographs show the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Poinsettia.

The photograph at the bottom of sheet comprises a side perspective view of a typical flowering plant of ‘PER1904’ grown in a container.

The photograph at the top of the sheet is a close-up view of a typical inflorescence of ‘PER1904’.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition, except where general terms of ordinary dictionary significance are used. The following observations and measurements describe plants grown in Encinitas, Calif. during the winter in a polyethylene-covered greenhouse and under conditions and practices which approximate those generally used in commercial Poinsettia production. During the production of the plants, day temperatures averaged 24° C., night averaged 19° C. and light levels were about 4,000 foot-candles. Measurements and numerical values represent averages for typical flowering plants. Single plants were grown in 16.5-cm pots and pinched one time. Plants were about 19 weeks old when the photographs and the detailed description were taken.

-   Botanical classification: Euphorbia pulcherrima cultivar PER1904. -   Parentage: Naturally-occurring branch mutation of the Euphorbia     pulcherrima Willd. cultivar PER1072, disclosed in U.S. Plant Pat.     No. 15,883. -   Propagation:     -   -   Type.—Terminal vegetative cuttings.         -   Time to initiate roots.—About ten days at 20° C. to 22° C.         -   Time to produce a rooted young plant.—About four weeks at             20° C. to 22° C.         -   Root description.—Fibrous; white in color. -   Plant description:     -   -   Plant habit and form.—Uniform, upright and mounded plant             habit; inverted triangle. Inflorescences positioned above             the foliar plane. Moderately vigorous growth habit.         -   Plant height.—About 28 cm.         -   Plant diameter or spread.—About 34 cm.         -   Lateral branch description.—Quantity: Freely branching             habit, about eight lateral branches develop after pinching.             Length: About 24 cm. Diameter: About 6 mm. Internode length:             About 1.5 cm. Strength: Strong. Texture: Smooth, glabrous.             Color: 144A.         -   Foliage description.—Arrangement: Alternate, simple. Length:             About 7 cm. Width: About 7.2 cm. Shape: Oval to elliptic.             Apex: Rounded to broadly acute. Base: Acute. Margin: Entire.             Venation pattern: Pinnate. Texture, upper surface: Smooth,             glabrous. Texture, lower surface: Minute pubescence.             Surface: Rugose. Aspect: Recurved. Color: Developing and             fully expanded foliage, upper surface: Darker than 147A;             venation, 146D. Developing and fully expanded foliage, lower             surface: 147A; venation, 146D. Petiole: Length: About             2.8 cm. Diameter: About 3 mm. Texture, upper and lower             surfaces: Smooth, glabrous. Color, upper and lower surfaces:             146A. -   Inflorescence description:     -   -   Inflorescence type and habit.—Inflorescences are compound             corymbs of cyathia with colored flower bracts subtending the             cyathia. One inflorescence per lateral branch. Flowers are             not fragrant. Flowers persistent. Inflorescences positioned             above the foliage.         -   Natural flowering season.—Autumn/winter; inflorescence             initiation and development is induced under long nyctoperiod             conditions. Mid-season flowering; response time, about 7.5             weeks; natural season flowering maturity date is             mid-November for plants grown in Encinitas, Calif.         -   Post-production longevity.—Excellent post-production             longevity; plants of the new Poinsettia maintain good             substance and bract color for about four weeks under             interior conditions.         -   Inflorescence size.—Diameter: About 12.5 cm. Height (depth):             About 9 cm.         -   Flower bracts.—Quantity per inflorescence: About 24. Length,             largest bracts: About 8.5 cm. Width, largest bracts: About             7 cm. Shape: Elliptic. Apex: Acute. Base: Acute. Margin:             Entire. Texture, upper and lower surfaces: Smooth, glabrous.             Surface: Rugose. Aspect: Recurved. Venation pattern:             Pinnate. Color: Developing or transitional bracts, upper             surface: 50A. Developing or transitional bracts, lower             surface: 50B. Fully developed bracts, upper surface: 50B to             50C; color becoming closer to 48A to 48B with development.             Fully developed bracts, lower surface: 51B. Venation, upper             and lower surfaces: Similar to flower bract color. Bract             petiole: Length: About 1.5 cm. Diameter: About 3 mm.             Texture, upper and lower surfaces: Smooth, glabrous. Color,             upper and lower surfaces: 150C tinted with 50B.         -   Cyathia.—Quantity per corymb: About 12. Diameter of cyathia             cluster: About 2 cm to 2.8 cm. Length: About 8 mm. Width:             About 7 mm. Shape: Ovoid. Color, immature: 145B. Color,             mature: 145C. Nectaries: Quantity per cyathium: About one or             two. Size: About 3 mm by 4 mm. Color: 14A.         -   Peduncles.—Length: About 5 mm. Diameter: About 2 mm.             Strength: Strong. Aspect: Upright. Texture: Smooth,             glabrous. Color: 145C.         -   Reproductive organs.—Stamens: Quantity per cyathium: About             ten. Anther shape: Oval; bi-lobed. Anther length: About             1 mm. Anther color: 12B. Amount of pollen: Scarce. Pollen             color: 12A. Pistils: None observed. Seed/fruit: Seed and             fruit production has not been observed. -   Disease/pest resistance: Plants of the new Poinsettia have not been     shown to be resistant to pathogens and pests common to Poinsettias. -   Temperature tolerance: Plants of the new Poinsettia have been     observed to tolerate temperatures ranging from about 15° C. to about     30° C. 

1. A new and distinct Poinsettia plant named ‘PER1904’ as illustrated and described. 